QUIZ: P7 - What is radioactivity?

What key term means to 'give off' or 'release'?

• Absorb

• Emit

• Explode

• Implode

Where does nuclear radiation come from?

• All atoms

• Electrons

• An unstable nucleus

• An unstable proton

If the nucleus of an element is unstable it is called...

• Radioactive

• Stable

• Explosive

• Corrosive

What does an unstable nucleus 'give off'?

• Radioactive atoms

• Radioactive material

• Nuclear radiation

• Nucleus atoms

There is a small amount of natural radioactivity all around us. What is this called?

• Background radiation

• Foreground radiation

• Playground radiation

• Backgammon radiation

How can we detect nuclear radiation?

• A thermometer

• An ammeter

• A galvanometer

• A Geiger-Muller tube

What do we call a material which is radioactive?

• A nuclear radiation

• A nucleus material

• A radioactive source

• A radioactive electron

Which of these contributes most to background radiation?

• Radon gas from rocks

• Nuclear weapons testing

• Food and drink

• People

If a material is very radioactive, what does that mean?

• It means that the material emits lots of radiation every second.

• It means that the material absorbs lots of radiation every second.

• It means that the material emits lots of radioactive sources every second.

• It means that the material emits hardly any of radiation every second.